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https://issues.apache.org/jira/browse/SOLR-13350?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17845149#comment-17845149
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Gus Heck commented on SOLR-13350:
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I'm a little concerned that multithreaded is set to false [in the
TestCpuAllowed
test|https://github.com/apache/solr/commit/ff6607d25f023a59f866a66820037bb215342ca8#diff-874aaa9daaf158f756a5bd6d61ec8ec5a6961063c5916e54641d2be7ad39a4b9R189]
and
[TestQueryLimits|https://github.com/apache/solr/commit/ff6607d25f023a59f866a66820037bb215342ca8#diff-0d9937f23efd32a0eadf335a72ea5c79727d15d1ed5a53bb89834da6164b8a36R89]
tests.
Was that meant to be revisited? if not, it seems to say that multi-threaded
search is incompatible with query limits. That's an important thing to document
if it is the intention. Even if documented, it doesn't seem great that users
have to chose... Especially since fanning out on multiple threads presents an
even greater opportunity to starve innocent bystander queries with a
misbehaving query.
> Explore collector managers for multi-threaded search
> ----------------------------------------------------
>
> Key: SOLR-13350
> URL: https://issues.apache.org/jira/browse/SOLR-13350
> Project: Solr
> Issue Type: New Feature
> Reporter: Ishan Chattopadhyaya
> Assignee: Ishan Chattopadhyaya
> Priority: Major
> Attachments: SOLR-13350.patch, SOLR-13350.patch, SOLR-13350.patch
>
> Time Spent: 11h 20m
> Remaining Estimate: 0h
>
> AFAICT, SolrIndexSearcher can be used only to search all the segments of an
> index in series. However, using CollectorManagers, segments can be searched
> concurrently and result in reduced latency. Opening this issue to explore the
> effectiveness of using CollectorManagers in SolrIndexSearcher from latency
> and throughput perspective.
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